Apparatus for sifting pulverized ores or the like.



no.' 690,'73l'. Panmmll 1an.' 7, 1902.

W-.JA-MIESUN &. F. J. 0IJL|NG. APPARATUS FDR SIFTING PULVEBIZEDURES 0R THE LIKE.

(Appumion med'nn. 1o, 41901.)

um nodal.) 2 sums-snm l.

No. sgsl. Patented Janfz, |9012..

A lw. JAMIE-somt F; J. 00L-"mc, APPARATUSl FDR SIFT-ING PULVERIZED URESURTHE LIKE.

` (Application med June 1o, w01.)4A (nunmal.) 2 snmp-sheet 2.

62 l. v j' UNITED STATES PATENT FFICE;

WILLIAM JAMInsoN AND FRANCIS JAMES oDLINe, or MELBOURNE,

` vIoTortIA.v

APPARATUS FOR SIFTING PULVERIZED ORES ORTHE LIKE.r

sPEciFIcATIoN forming peut ef Lettere Patent No. 690,731, dated January 7, 1902.

Application iiled June 10,1901.

To all whom t may concern:

Be it known that we, WILLIAM JAMIEs'oN, gentleman, residing at Broken Hill Chambers, No.- 31 Queen street, Melbourne, and FRANCIS JAMES ODLING, mining engineer, residing atl No. 2 Princes Walk, Princes Bridge, Melbourne, in the State of Victoria, subjects of the King of Great Britain and Ireland, have invented a new and useful Improved Apparatus for Sifting Pulverized )res or the Like, of which the following is a specification. This invention relates to an improved apparatus for sifting pulverized ores and the dished,perforated,ormeshed surface or screen which has a peculiar tilting motion or tremor imparted toit by suitable appliances in order tojagitate and distribute the pulverized or finely-divided ore upon and overthe perforated concally-dished surface while it is being treated and also 'to cause the coarse particles which will not pass through the meshes to traverse from the periphery to a central discharge, all as will hereinafter be fully described.

' In order that our invention may be well understood, we will now describe it, aided by a reference to the accompanying drawings, in whiche Figure l is a vertical central sectional elevation of an apparatus constructed in accord` ance with our invention; and Fig. 2,a sectional plan of the apparatus looking down from line 2 2,Fig. l. Fig. 3 is a detail plan taken from line 3 3, and Fig. 4 a detail plan taken from line 4 4,both in Fig. 1, while Fig. 5 is a plan of the under side of the delivery-,funnel and its cover.

The sifting or sizing appliance is formed of a conical-shaped skeleton dish A, having an annular channel a on the under surface of its peripherical ring a' and provided with a central boss a2, said boss and outer ring being connected together by radial ribs or arms a3,

Serial No. 64,135. (No model.)

which also carry a central delivery-funnel a4, the whole conical surface between the ring a' and central funnel c4 above the radial ribs being covered with perforated plate, wiregauze, or other suitable sifting orsizing material A. The ribs-a3 are cutaway at regular intervals, as at a?, under the sifting-plate 1o allow freedom for screening. y

The conical-shaped skeleton dislIAis supported at yits center on a Vvertical spindle B,

(l, while between 'the head of each bolt and the upper surface of the disk isa rubber ring peripherical ring bears upon a ilat circular ring of rubber or other suitable material D, which is capable of constituting a bufferthe latter being supported in an annular groove d, provided in a circular piece D', which is capable of vertical adjustment by its being Vslpported at the upper end of three pillars D2, each of which is furnished with an adjusting-nutcland a lock-stud d2. Said pillars D2 are also secured to the bed-plate C.

E is a central hopper supported loosely on the upper length of the central vertical spindle B, which is also shown screwed into boss a2. The said hopper is capable of being rotated by a beltE, and it is provided with radial and downwardly-inclined distributingpipes E2, which feed the material under treatment uniformly to 'near the periphery of the conical-shaped dish A.

On the upper part of the central vertical spindle B, above tlfe feed hopper or cup, is a loose gun-metal sleeve F, provided lwith a disk flange F', carrying a weight F2 at one side, and which weight may be increased or diminished, as required. Said sleeveis connected by a coiled spring or flexible driving medium F3 to a tubular spindle F4, upon which is a driving-pulley F5, to which motion is imparted by belt FG. The tubular spindle F4 is supported in a bearing g at end of an or buffer b3. The annular Ilat surface of the ICO arm' or bracket G, carried on a pillar G', screwed into the bed-plate C.

gsa is an oil-Well feeding the pipe g3, Which leads to the bearing of sleeve F.

The top of bed-plate C is made solid in order to be water-tight, and secured to a rim on it is a cylindrical casing C, which passes to a height above the top of the conicallyshaped dish A in order that said dish may be fully immersed in water when so desired while the materials are being treated.

C2 is a division-cone forming a free continuation from the central funnel d, cone C2 being secured to a rim or narrow flange on the said bed-plate.

C3 is a conical shield carried by the central spindle B and designed to protect the buffers b3.

C4 and C5 are discharge funnels or channels formed in bed-plate C, the former for the materials which have passed through the perforations of screen A and the latter for the material which has been delivered over the screen to the central discharge-funnel CL4. The opening c' in each of said dischargechannels is provided with a circular coverplate C5, centered on a stud, as shown, and furnished with several holes c of varying diameters in order that the rate of discharge may be regulated.

Although on the drawings the whole of the materials passing through the meshes of the sifting or sizing plate A are designed to be delivered to the chamber leading to funnel C4, the surface of plate A may have meshes or perforations of different sizes formed in it. For instance,the finest perfor-ations being nearest the periphery Would allow the finer or smaller-sized materials to pass through, While the larger and coarse materials would pass through the larger perforations nearer the discharge, and in such a case the space under the sifting or sizing surface would be divided olf into separate chambers to catch the several sizes of sifted material.

Vhen the ores being treated either Wet or dry are fed to the central hopper E, which is rotated by the belt E', the radial pipes E2 distribute the pulverized or finely-divided materials uniformly at the periphery of the dish A, and the materials immediately become subjected to the peculiar tilting motion given to the dish, and so to the sifting and sizing surface A, Which causes the ore to travel from the outer edge of the sifting-surface over the perforations to the central discharge d4, the smaller grains or material falling through the openings in the sifting-surface A', and the larger grains or particles continue their course and discharge to the central opening a4, each falling into separate compartments, as before explained. The peculiar tilting motion is imparted to the screening or sizing appliance by aid of the rotary weighted sleevedisk F F' F2, Which has motion communicated to it through the medium of exible shaft F3, sleeve F4, and sheave F5, driven by belt F6.

Then as the dish A is seated on a rubber cushion or bulferD and the lowerend of dishspindle B seated lon a spherical-headed bolt B and secured down by the rubber-cushioned bolts b2 the rotary vibration of the dish can be adjusted by the Weights F2 and by pressure exerted on the rubber cushion D under the rim of the dish and by that exerted on the rubber cushions b3 of bolts b2. It will now be understood that the dish A does not rotate, but has the peculiar tilting motion or shake given it While seated on the rubber cushion D. By making the Weight F2 heavier its tendency to make the driving sleeve and spindle B defiect from the vertical Will be increased, and the flexible shafting will yield to a greater extent for this purpose. The power-belts F(i and E may be driven by any suitable means.

Having noW particularly described and ascertained the nature of our said invention and in what manner the same is to be performed, We declare that what We claim is 1. In combination,a conically-dished sifter having a central discharge, a spindle carrying the same, and supported to tilt in dierent directions, a Weighted disk above the sifter for acting upon the spindle, and means for driving the Weighted disk to allow the sameto have a lateral deflection under the action of the Weight to thus tilt the spindle and sifter in different directions.

2. In combination, the dish-shaped sifter having an annular rim a' formed with a dat seating-surface on its under side, a rubber cushion upon which said flat surface rests,- said sifter having the central discharge, a spindle carrying the said dished sifter, and means for causing said spindle and sifter to tilt in different directions, substantially as described.

3. In an apparatus for the purpose specified a conicallydished sifting or sizing dish A formed of an annular rim or ring ct having an annular rim a formed with a flat seating-surface on its under side, yielding means upon which said surface arests, radial ribs or arms a3, central boss d2, central discharge-opening a4, the perforated or meshed material A covering open surface between the outer ring and central discharge above the said ribs or arms and means for giving the sifting-dish a tilting movement substantially as described and illustrated.

4. In an apparatus for the purpose specified, the conically-dished siftingor sizing appliance A having its surface A perforated or meshed and provided with a central discharge 0.4, and a central pivotal spindle B, combined with the hopper E rotatable on spindle B and provided With radial feed-pipes E2, the sleeve-disk F, F having a Weight F2 at one side and designed to rotate on upper part of spindle B, and the rubber or other cushion D upon which dish A is seated, substantially as described and illustrated.

5. In an apparatus for the purpose specied TOO log

IIO

the combination of the conically-dished siftinrv or sizing appliance A A provided with a central discharge a4 and with a peripherical feed appliance, the central spindle B provided 5 with pivotal cup b and Iiangeb at its lower end, weighted rotating disk F F2, flexible shaft F3, disk-driving spindle F4, dish-seating cushion D supported in an adjustable ring D', the spherical-headed adjustable bolt B',

ro the holding-bolts b2, the rubber washers b3 between bolt-heads'and disk, and the bed-plate C substantially as described and illustrated.

6. In combination, the conicallydished sifting appliance A A', a cushion D upon 15 which said appliance rests, a ring D' supporting the cushion, adjustable pillars D2 supporting the ring, a spherically-headed adjustable pivot-bolt B', the dish-spindle B having a cup and a iiange b' connected to its lower zo end,said cup restingon thehead of the pivotbolt, a bed-plate C, the bolts b2 extending therefrom having heads, rubber washers on the ange b upon which said heads rest, a casing, and means for giving the spindle a tilting movement in a direction circumferen- 25 tially of the si'fter, substantially as described.

7. In combination, a dish-shaped sifter, `a spindle supporting the same, means for tilting said spindle in a direction circumferentially of. the sifter while said spindle and 3o sifter are held against actual rotation, and means for so holding the spindle and sifter, substantially as described. p

In witness whereof we have hereunto set our hands in presence of two witnesses.

WILLIAM JAMESON. FRANCIS JAMES ODLING. Witnesses:

BEDLINGTON NORDYOOMB, W. J. S. THOMPSON, 

